Water-gas generator.



No. 894,483. PAIENTED JULY 28, 1908.

E. N.GEENEY. WATEE GAS GENERATOR. l APPLICATION HLED APR.10, 1908.

|/l// TNESSES PATENTE-#LHS 1908. E.N.,GEENEY. im

WATER GAS GENERATOR.

APPLICATION FILED APR. 10. 1908.

'2 SHEETS-SHEET 2 valve with the generator below the grate of,4

' To all it may conc'em.'

STATES PATENT OEEICE.

HEEBER'L` N. CHENEY, 0E BOSTON, MASSACHUSETTS.

' waren-ens eENEan'ron. i

nastiness.

Specification of Letters Patent.y

:Patented July as, 190e.

Application hieanpl 1o, 190s. serial No. gaceta- Be it known that I, HERBERT IN. CHENEY,

` of Boston, in the county of. Suffolk and State of Massachusetts, have invented certain new and useful lm rovements in Water-Gas Generators, of whlch the following is a speclcat1on.

This invention relates to apparatus for generating water as and refers particularly to that type of suc apparatus having means whereby the steam Asupplied to the fuel is caused to ass either upward or downward through t e enera'tor rpper, the object of passingit ownward elng to .utilize the unconsumed portion of the fuel bed following from the .preceding upward course of the draft.

In apparatus of the character mentioned, it has been customary to ein loy two valves, anupper one in the outlet om the generator, and 'a lower one inthe branch which connects the outlet at a point beyond the upper the latter, the two valves being connected to o en and close simultaneously but alternately; t at is, pne valve being always open when the other one is closed. The upper valve is subject to suchintense heat that 4it is liable to become burned out or to' be so warped that gas or steam can pass by it when it is intended that the flowl shall only be downward through .the fuel bed in the generator.

The object of my invention is to provide an improvedstructure either dispensing entirely with the upper valve or preventing gas from passing the u per valve in the wrong direction 'when sai upper valve is in position intended to close the upper or main outlet.

Tothese ends, my invention consists 1n the construction andjeombination of'parts substantially as hereinafter described and claimed.

Of the accompanying drawings in which similar reference characters indicate the same or similar parts in all of the views, Figure 1 represents a transverse section through so much' of theappal'atus embodymy invention as may be necessary to cn.

1n abc the saidinvention to be understood.

l'1`ig. 2 yrepresents a section on line 2-2 of Fig. 1,1 looking "toward the left. Fig. 3 is'a view similar to Fig.l 1, but showing modifications hereinafter described. Fig. M represents a section`on line 4-4 of Fig'` 3 on a larger scale..v Fig. 5 is a detail view representing another modified structure 'of the communicating with the portion' 1411 of the branch.

As is usual in gas apparatus of this type,

there is a slide or gate valve -1n the lower; or branch port1on, the caslng of said valve being indicated in Fig. 1 at 17. In said Fig. 1,

I also show a valve 18 mounted to. close the outlet 12. f-gAc'cording to one embodiment -of my present invention, this valve 18 is made hollow for a purpose which willbe presently described. Said valve is adapted to be'raised into the lateral recess or cham-` ,80

ber 19." The stem of said valve is'cunnected to the inner end of a lever 20 which is pivoted at 21 to the upper end of a link 22, the

latter being pivoted at 23 to the valve c a's-l ing. T he outer end ofthe lever 20V is connected by a link 24 to a lever 25, which at A aboutl its mid length, 'is pivoted t'o the stem .26 ofthe lower valve, one e'nd of said lever -25 being pivotally connected to a link 27,

the lower end of which 4is pivoted to the` valve casing 17, the other end ofthe lever 25 being provided with thel usual balance weight 29. The stem of the valve, which controls the air inlet 16, is indicated at 30. With the exception of the upper valve being made hollow, the-construction, so far described is well known.

The connections i between the two valves is such that when 'one is open the other is closed'. tion of the .valves is usuall)Y eil'ectod )y a hand wheel such as indicated at 37, which hand wheel has apinion engaging a rack carried by the stem of the upper valve'.

In the operation of gas generators of this The o )eraf type, it is essential that the upper valve shall have at least one seat such as indicated at 31 against which said valve will certainly iit closely when the valve is in its lowerl osition. lf, .under any circumstances, t 1ere should be a tendency of the'gas to [low in a' direction the reverse of the arrow shown in Fig. 1, no harmful result would follow. But it is essential that, when the upper valve is lowered, there shall be no movement of gas or steam in the direction of the arrow in said Fig. 1. When the u per valve is new, it may fit its seat 31 su liciently close for this pur ose. But when it has been subjected to t e intense heat which it usually receives, said upper valve is liable to be so burned out or warped that it no longer properly serves `its purpose. I'therefore propose to either entirely dispense withsaid up 4er valve or tov add thereto means which wi l prevent the: leakage of gas past said valve when it is lowered. In the embodiment of the invention illustrated in'Figs. 1 and 2, the valve 18 is made hollow, as hasbeen stated, and is vided with steam nozzles or nipples 32 wliich project in a direction toward the generator. And the 4stem 33 of the said valve is made hollow and is provided with a branch pipe 34 passing through a stuiiing boX 35 so as to avea sliding fit therein, the connection with the steam supply beingy made through a pipe 36, and the construction being such that the valve 18 can be raised or lowered .without disturbing the steam connection.

The valve which will enable the steam to be absolutely. shut off or turned on is not indicated.

My invention, which comprises the use of a fluid jet device mounted in the outlet `of the gas generatorso as to. retard or reverse the ow of gas through said outlet, renders ity possible to entirely dispense with the upper` valvev and in fact Vto dispense entirely with any tight iitting valves 1n the outlet or the branch.

Whether the iiow of gas will be reversed or. retarded de ends, `of course, u on the pressure withwllich the fluid issues rom the jet devices. Sometimes it is desirable to check the 'outflow through the upper assage i 12, without reversing the direction; o movement of the gas. This can be done by admitting the supply of iluid at a pressure less than that which .would be requiredto force the gas to move downward through the generator.

.In the embodiment of the invention shown in Fig. 3, there is no valve in the branch, although a damper 40 may be preferred in the vertical portion. 14 et the branch. Arranged in said vertical portion 14 of the branch and pointing downwardly, is a steam jet device 41, the supply pipe forwhichis indicated at 42, the supply being controlled by any suitable valve not shown. Connections, such as have been described and illustrated in connection with the upper and lower valves shown in Figs. 1 and 2, may be employed to alternately control the su )ply of steam, wliiehis directed downwardly in the branch section.14, and the supply of steam which is directed toward the generator in the main outlet 12.

As clearly shown in Figs. 3 and 4, the usual valve in the outlet is entirely dispensed with, but a jet device is ein loyed which may be raised into or lowered liom the lateral recess or chamber 19. Said jet device may consist of a group of nozzles 321 carried directly by the lower end of a steam pipe which is the same in construction and operation as the hollow valve stem 3-3 hereinbetore described.

With the apparatus constructed as shown in, Fig. 3, steam, which is to pass down jets 321, and steam, which is to pass up through the lirebed, is admitted through the jet device or nozzle 41, the velocity of the steam, in either case, causing it and the gas to flow in the desired direction. With the structure shown in Fig. 3, no air inlet for the earbureter is needed, it being possible to slipply sulieient air through the inlet 16, the damper 40 being employed to control the amount of air which passes to the carbureter.

In Fig. 5, I illustrate a different means for supplying steam whether a valve is located adjacent to the jet device or not. In said figure, the structure is such that steam is supplied through a circular series of inclined ports 322the steam coming from an annular supply passage 323, which in turn receives its steam through any suitable valve-controlled pipe. The ports 322 are inclined in` such a direction that, when steam is being forced through them, no gas can pass from the top of the generator through the outlet 12, whether a valve such as shown at 181 is present or not, or whether such valve, it present, has become warped. 1

1. A gas generator having a jet device in its outlet directed toward the generator whereby the ilow of gas through said outlet and generator may be retarded er reversed.

2. A generator having its outlet provided with a lateral recess or chamber, and a jet device directed toward the generator and movable to loccu py said recess or to a position in the path ot gas passing through said outlet.

3. A generator having an outlet to the carbureter and having a branch connecting said `autlet with the space below the fuel bed of the generator, and a jet device directed to- 12 `ward the generator and adapted to prevent the [low oi gas-l'rom the upper portion el the generator directly to the carburetor.

` 4f.Y A ges'generatorhaving siny outlet to the the fuel bed, each of seid jet'devices being carbureter and having e branch connectn directed toward the generator. 10 seid outletwith the space below the fuel be In testimony Whereof` I have afflxed my of the generator, a jet device adapted to presignature, in presence of two Witnesses. 5 vent the flow of gesI from the upper portion of I HERBERT N. CHENEY.

the generator directly to the fcarbureter, end l Witnesses: Y 1 a jet device ada ted to prevent the flow oil JOHN SHEA, gas through the' ranch from the space below I WM. S. LYoNs. 

